Home / 72,037.20-107,918.10-38,746.20

Finding the Fourth Proportional to 72,037.20, 107,918.10 and 38,746.20

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Solution

The fourth proportional to 72,037.20, 107,918.10 and 38,746.20 is: 58,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,037.20 : 107,918.10 = 38,746.20 : x
  2. Step 2: Convert to fraction form
    72,037.20/107,918.10 = 38,746.20/x
  3. Step 3: Cross multiply
    72,037.20x = 107,918.10 × 38,746.20
  4. Step 4: Simplify right side
    72,037.20x = 4,181,416,286.22
  5. Step 5: Solve for x
    x = 4,181,416,286.22/72,037.20
  6. Step 6: Final answer
    x = 58,045.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.